Providing instruments that detect, measure, analyze, and control your process and your facility.

We're honored to be your chosen supplier for

ASCO Valve Co  Logo: Baker Hugher, a GE Company  DeZURIK APCO Hilton Willamette  Honeywell - Field Solutions and Combustion Controls  Siemens Industry Inc  UE - United Electric Controls  WIKA Instrument Corp  Jordan Valve Division of Richards Industries  LowFlow Division of Richards Industries  Steriflow Division of Richards Industries  Hex Valve Division of Richards Industries  Marwin Valve Division of Richards Industries  Bestobell Steam Division of Richards Industries  API: Absolute Process Instruments and CeComp  Acopian Power Supplies  Ametek Land  Ametek US Gauge  Aquametrix by Water Analytics  A-T Controls Co  Logo: Banner Engineering  Logo: Atkins  Cosa Instruments  CR Magnetics  Dickson Recorders  Dwyer Instruments  Ebro Armaturen  Eclipse Honeywell  Fireye Flame Safety  Flomec  Jacoby-Tarbox Division of Clark-Reliance  Jerguson Division of Clark-Reliance  K-Patents Process Refractometers    Kromschroder - Hauck Manufacturing    Maxon - A Honeywell Company  Meriam: A Scott Fetzer Co    Minebea Intec - formerly Sartorius GWT Global Weighing Technologies    Parker Brass Fittings  Phoenix Contact - Interface Instruments  PIE: Practical Instrument Electronics  Precision Digital Corp  Process Communications Solutions (ProComSol)    Pyromation Inc          Rotronic Instruments      Stafsjo Valve AB      Thermal Instrument Company  Titan Flow Control  TSI Incorporated  Alnor: A Division of TSI  Quest: A Division of TSI  West Controls - Including CAL Controls - PMA - Partlow 

Process application

At Lesman, every one of our employee-owners stands behind the products we sell and the service we provide. We strive for 100% error-free order entry, error-free shipping, and 100% satisfaction guaranteed at all times. If you're not satisfied with the products you buy from Lesman or the services we provide along the way, we'll work with you to achieve that goal.

Since 1962, Lesman has been a trusted representative and stocking distributor for process control and measurement instrumentation in Illinois, Indiana, Wisconsin, Missouri, Iowa, and Michigan's upper peninsula.

  • Exclusive representative for Siemens, ASCO Valve, Honeywell, DeZurik|APCO|Hilton, United Electric, WIKA, Baker Hughes GE, Jordan Valves and more.
  • Sales team with an average 16 years process instrumentation experience, including degreed mechanical, chemical, and industrial engineers.
  • "No Registration Required" access to free online training, user manuals, and technical tips. See our training center for more than 40 hours of free videos.

Whatever your goal — reducing energy costs and waste, better inventory management, reducing downtime and maintenance costs, improving product quality, managing worker and plant safety — the staff at Lesman will help you get the most value out of your process measurement and control instruments.

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